Home / 27,378.28-37,781.98-15,441.58

Finding the Fourth Proportional to 27,378.28, 37,781.98 and 15,441.58

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Solution

The fourth proportional to 27,378.28, 37,781.98 and 15,441.58 is: 21,309.35

Step by Step Solution

  1. Step 1: Write the proportion equation
    27,378.28 : 37,781.98 = 15,441.58 : x
  2. Step 2: Convert to fraction form
    27,378.28/37,781.98 = 15,441.58/x
  3. Step 3: Cross multiply
    27,378.28x = 37,781.98 × 15,441.58
  4. Step 4: Simplify right side
    27,378.28x = 583,413,389.52
  5. Step 5: Solve for x
    x = 583,413,389.52/27,378.28
  6. Step 6: Final answer
    x = 21,309.35

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1.5x scale

Why These Related Problems?

These problems maintain the same ratio (1.38) or explore similar proportional relationships. Practicing with related ratios helps build understanding of proportional relationships.